Cita APA

Jefferson, T. A., & Webber, M. A. P. (2008). Marine mammals of the world: A comprehensive guide to their identification. Elsevier.

Citación estilo Chicago

Jefferson, Thomas A., y Marc A. Pitman Webber. Marine Mammals of the World: A Comprehensive Guide to Their Identification. Amsterdam: Elsevier, 2008.

Cita MLA

Jefferson, Thomas A., y Marc A. Pitman Webber. Marine Mammals of the World: A Comprehensive Guide to Their Identification. Elsevier, 2008.